Pivot-pin support for couplings.



No. 824,526. PATENTED JUNE 26, 1906. w. E. GOFFIN.

v PIVOT PIN SUPPORT POR GO'UPLIN GS.

APPLICATION FILED JAN. 25, 1906.

' 2 sums-gum 1.

0 i Hg v WWII/ No. 824,526. I PATENTED JUNE 26, 1906. W. E. GOPPIN.

PIVOT PIN SUPPORT FOR COUPLINGS.

APPLICATION FILED JAN. 25, 1906.

2 sums SHEET 2 UNITED STATES PATENT OFFICE.

WALTER E. OOFFIN, OF CLEVELAND, OHIOg' ASSIGNOR TO THE NATIONAL MALLEABLE OASTINGS COMPANY, OF CLEVELAND, OHIO, A CORPORA- TION 'OF OHIO.

PIVOT-Pm SUPPORT FOR COUPLINGS.

Specification of Letters Patent.

Patented June 26, 1906.

Application m January 25,1906. Serial No- 297.738-

' had to the accompanying drawings, forming part of this specification, in which Figure 1 shows in vertical section a'coupler having a pivot-pin support embodying my invention. Fig. 2 is a side elevation of the lower ear of the coupler. Fig. 3 is aview similar to Fig 1, showing a modified construction. Fig. 4 is a view similar to Fig. 2, showing the lower lug of Fig. 3. Figs. 5 and 6 illustrate a modification, and Figs. 7 and 8 illustrate other modifications.

When car-couplers are used for some purposes, it is important that the pivot-pin should be constructed so as to be insertible and removable from below, and in such cases it is essential that means be provided for supporting the pivot-pin in the coupler. My invention is directed to this end, and it provides a strong and efficient support well adapted for the purpose intended.

. In the drawings, 2 is the upper ear, and3 the lower ear, of a Master Car-Builders coupler. 4 is the swinging knuckle, and 5 is the pivot-pin which passes throu h the ears and through the intermediate Irnuckle. This v pivot-pin is insertible from below and is provided with a head 6, which when the pin is in osition fits within a circular lug 7 of the ower'ear 3. The pin is upheld by a bolt 8,

which-passes through -the walls of the circular lug 7, extending diametrically across the same,- and is provided with a cotter 9. The weight of the pivot-pin is borne by the bolt 8, which is strong and substantial and being i. pass ed through cored holes in the lug 7 can In Figs. 3 and 4 I show a modification which the head 6 of the pivot-pin is provided with a transverse groove which fits upon the bolt 8, and thus keeps the pivot-pin from turning. a

In the modification shown in Figs. 5 and 6 the head 6 of the pivotpin is flattened on opposite sides, and'the sides of the cavity of the lug 7 are also flattened to keep the pivotpin from turning.

In Fig. 7 I showa modification in which the top of the pin-hole in the upper lug of the coupler is closed or partially closed, as at 2, so as to prevent upward displacement of the pin, which in this case need not be provided with a head.

-In the modification shown in Fig. 8 the upper lug 2 has an upward extension 2, which extends above the end of the pin. The lug is formed in this way, so that after the hole through the lug has been drifted the extension 2 can be hammered down so asto partly close the hole and bring the parts into substantially the same condition as shown inFig. 7. Other modifications of my invention can be made by those skilled in the art, since What I claim is 1. A oarcoupler having a pivot-pin insertible 1n the coupler from below, said coup- .ler having a hollow lug at its basein which the head of the pin fits, and a sliding bolt which passes throughbolt-holes in the walls of the lug beneath the pin and supports the pin.

2. A car-coupler having a pivot-pin provided with a head and insertible in the coupler from below, said coupler having a hollow lugat its base in which the head of the piece fits, and a retaining device for said piece,

said device comprising anordinary bolt slid through bolt-holes in the walls of said'lugbelow the pin and supporting .the same; substantially as described.

3. A car-coupler having a ivotin provided with a head and insertib e in t e coupler from below, said coupler having a hollow lug at its base in which the head of the pin fits, a bolt which passes through the walls of the lug and supports the pin, and means beneath the pin engaging the head of the pin to prevent it from turmng.

4. car-coupler havinga pivot-pin pro g; seems vided with a head and insertible in the coup- In testimony whereof I have hereunto set ler fi'om below, said coupler havinga hollow my bend. lug at its base in which the head of the pin fits, ands bolt beneath the pin which passes WALTER E. COFFIN. through the Walls of the lug and forms a rest Y Witnesses:

' for the pin-head, said head and bolt being in- HENRY F. PorE, .terfitted to prevent the pin from turning. HARRY E. ORR. 

